Comment on Tutorial - Read from a COM port using Java program By Steven Lim



Comment Added by : PeteC

Comment Added at : 2014-02-22 18:57:14

Comment on Tutorial : Read from a COM port using Java program By Steven Lim
I am running it within NetBeans. I set a breakpoint at:
portlist=CommPortIdentifier.getPortIdentifiers():
I do F& and is shows:
public static SecurityManager getSecurityManager(){
return security
but security is null so portlist becomse null and the program ends.
Any idea how to get past this?
Thanks,


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Archived Comments

1. gr8t man.....! i am satisfied with ur explanation
View Tutorial          By: raja deepa at 2011-07-05 13:44:21

2. what about the remaining explanation......do anyth
View Tutorial          By: raki at 2011-11-07 10:47:25

3. i have clear that notify and wait
but where

View Tutorial          By: pp at 2009-06-29 06:12:13

4. the reason for this is quite simple: java expands
View Tutorial          By: vineeth at 2011-08-25 13:54:37

5. I have use the above code, Am getting the below er
View Tutorial          By: RameshKumar at 2011-07-25 05:02:12

6. rms programe
View Tutorial          By: hardik at 2008-03-28 23:06:58

7. Great Work for JAVA Beginners
View Tutorial          By: Sudhir Rajgure at 2009-03-01 02:40:00

8. had the sample problem.. java.io.IOException: HTTP
View Tutorial          By: java at 2012-08-22 09:39:57

9. That's really daam !!! simple example :) .........
View Tutorial          By: akshay sharma at 2011-05-03 04:49:15

10. I get this error:
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View Tutorial          By: Carlos at 2010-06-14 02:42:53